Gregory Castle
NPI 1700669306 · Physician Assistant · Santa Maria, CA
Gregory Castle is a Physician Assistant provider in Santa Maria, CA (NPI 1700669306).
Provider details
- NPI number
- 1700669306
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 991 Bello St Apt 3Pismo Beach, CA 93449-2341Phone: (805) 868-9435
Registry dates
- Enumerated
- 2023-08-16
- Last updated
- 2023-08-16
- Certified
- 2023-08-16
Frequently asked questions
- What is Gregory Castle's NPI number?
- Gregory Castle's National Provider Identifier (NPI) is 1700669306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Castle's specialty?
- Gregory Castle is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gregory Castle located?
- Gregory Castle's practice location on file with NPPES is 2050 S Blosser Rd, Santa Maria, CA 93458-7310.
- What is Gregory Castle's phone number?
- The practice phone number listed in the NPPES registry for Gregory Castle is (866) 614-4636.
- Is Gregory Castle's NPI active?
- Yes — Gregory Castle's NPI (1700669306) is active in the NPPES registry as of the last update on 2023-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.